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Debian: Security Advisory (DLA-2385-1)

🗓️ 29 Sep 2020 00:00:00Reported by Copyright (C) 2020 Greenbone AGType 
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Debian: Security Advisory (DLA-2385-1) The Debian 'linux-4.19' package(s) have multiple vulnerabilities which may lead to privilege escalation, denial of service, or information leak

Related
Refs
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Rows per page
# SPDX-FileCopyrightText: 2020 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.892385");
  script_cve_id("CVE-2019-19448", "CVE-2019-19813", "CVE-2019-19816", "CVE-2019-3874", "CVE-2020-10781", "CVE-2020-12888", "CVE-2020-14314", "CVE-2020-14331", "CVE-2020-14356", "CVE-2020-14385", "CVE-2020-14386", "CVE-2020-14390", "CVE-2020-16166", "CVE-2020-25212", "CVE-2020-25284", "CVE-2020-25285", "CVE-2020-25641", "CVE-2020-26088");
  script_tag(name:"creation_date", value:"2020-09-29 03:00:40 +0000 (Tue, 29 Sep 2020)");
  script_version("2024-02-02T05:06:07+0000");
  script_tag(name:"last_modification", value:"2024-02-02 05:06:07 +0000 (Fri, 02 Feb 2024)");
  script_tag(name:"cvss_base", value:"9.3");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:C/I:C/A:C");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2020-09-22 18:24:17 +0000 (Tue, 22 Sep 2020)");

  script_name("Debian: Security Advisory (DLA-2385-1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2020 Greenbone AG");
  script_family("Debian Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/debian_linux", "ssh/login/packages", re:"ssh/login/release=DEB9");

  script_xref(name:"Advisory-ID", value:"DLA-2385-1");
  script_xref(name:"URL", value:"https://www.debian.org/lts/security/2020/DLA-2385-1");
  script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/linux-4.19");
  script_xref(name:"URL", value:"https://wiki.debian.org/LTS");

  script_tag(name:"summary", value:"The remote host is missing an update for the Debian 'linux-4.19' package(s) announced via the DLA-2385-1 advisory.");

  script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");

  script_tag(name:"insight", value:"Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service, or information leak.

CVE-2019-3874

Kernel buffers allocated by the SCTP network protocol were not limited by the memory cgroup controller. A local user could potentially use this to evade container memory limits and to cause a denial of service (excessive memory use).

CVE-2019-19448, CVE-2019-19813, CVE-2019-19816 Team bobfuzzer reported bugs in Btrfs that could lead to a use-after-free or heap buffer overflow, and could be triggered by crafted filesystem images. A user permitted to mount and access arbitrary filesystems could use these to cause a denial of service (crash or memory corruption) or possibly for privilege escalation.

CVE-2020-10781

Luca Bruno of Red Hat discovered that the zram control file /sys/class/zram-control/hot_add was readable by all users. On a system with zram enabled, a local user could use this to cause a denial of service (memory exhaustion).

CVE-2020-12888

It was discovered that the PCIe Virtual Function I/O (vfio-pci) driver allowed users to disable a device's memory space while it was still mapped into a process. On some hardware platforms, local users or guest virtual machines permitted to access PCIe Virtual Functions could use this to cause a denial of service (hardware error and crash).

CVE-2020-14314

A bug was discovered in the ext4 filesystem that could lead to an out-of-bound read. A local user permitted to mount and access arbitrary filesystem images could use this to cause a denial of service (crash).

CVE-2020-14331

A bug was discovered in the VGA console driver's soft-scrollback feature that could lead to a heap buffer overflow. On a system with a custom kernel that has CONFIG_VGACON_SOFT_SCROLLBACK enabled, a local user with access to a console could use this to cause a denial of service (crash or memory corruption) or possibly for privilege escalation.

CVE-2020-14356

A bug was discovered in the cgroup subsystem's handling of socket references to cgroups. In some cgroup configurations, this could lead to a use-after-free. A local user might be able to use this to cause a denial of service (crash or memory corruption) or possibly for privilege escalation.

CVE-2020-14385

A bug was discovered in XFS, which could lead to an extended attribute (xattr) wrongly being detected as invalid. A local user with access to an XFS filesystem could use this to cause a denial of service (filesystem shutdown).

CVE-2020-14386

Or Cohen discovered a bug in the packet socket (AF_PACKET) implementation which could lead to a heap buffer overflow. A local user with the CAP_NET_RAW capability (in any user namespace) could use this to cause a denial of service (crash or memory corruption) or possibly for privilege escalation.

CVE-2020-14390

Minh Yuan discovered a bug in the framebuffer console driver's scrollback ... [Please see the references for more information on the vulnerabilities]");

  script_tag(name:"affected", value:"'linux-4.19' package(s) on Debian 9.");

  script_tag(name:"solution", value:"Please install the updated package(s).");

  script_tag(name:"solution_type", value:"VendorFix");
  script_tag(name:"qod_type", value:"package");

  exit(0);
}

include("revisions-lib.inc");
include("pkg-lib-deb.inc");

release = dpkg_get_ssh_release();
if(!release)
  exit(0);

res = "";
report = "";

if(release == "DEB9") {

  if(!isnull(res = isdpkgvuln(pkg:"linux-config-4.19", ver:"4.19.146-1~deb9u1", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-doc-4.19", ver:"4.19.146-1~deb9u1", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-headers-4.19.0-0.bpo.11-686", ver:"4.19.146-1~deb9u1", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-headers-4.19.0-0.bpo.11-686-pae", ver:"4.19.146-1~deb9u1", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-headers-4.19.0-0.bpo.11-all", ver:"4.19.146-1~deb9u1", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-headers-4.19.0-0.bpo.11-all-amd64", ver:"4.19.146-1~deb9u1", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-headers-4.19.0-0.bpo.11-all-arm64", ver:"4.19.146-1~deb9u1", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-headers-4.19.0-0.bpo.11-all-armel", ver:"4.19.146-1~deb9u1", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-headers-4.19.0-0.bpo.11-all-armhf", ver:"4.19.146-1~deb9u1", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-headers-4.19.0-0.bpo.11-all-i386", ver:"4.19.146-1~deb9u1", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-headers-4.19.0-0.bpo.11-amd64", ver:"4.19.146-1~deb9u1", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-headers-4.19.0-0.bpo.11-arm64", ver:"4.19.146-1~deb9u1", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-headers-4.19.0-0.bpo.11-armmp", ver:"4.19.146-1~deb9u1", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-headers-4.19.0-0.bpo.11-armmp-lpae", ver:"4.19.146-1~deb9u1", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-headers-4.19.0-0.bpo.11-cloud-amd64", ver:"4.19.146-1~deb9u1", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-headers-4.19.0-0.bpo.11-common", ver:"4.19.146-1~deb9u1", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-headers-4.19.0-0.bpo.11-common-rt", ver:"4.19.146-1~deb9u1", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-headers-4.19.0-0.bpo.11-marvell", ver:"4.19.146-1~deb9u1", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-headers-4.19.0-0.bpo.11-rpi", ver:"4.19.146-1~deb9u1", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-headers-4.19.0-0.bpo.11-rt-686-pae", ver:"4.19.146-1~deb9u1", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-headers-4.19.0-0.bpo.11-rt-amd64", ver:"4.19.146-1~deb9u1", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-headers-4.19.0-0.bpo.11-rt-arm64", ver:"4.19.146-1~deb9u1", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-headers-4.19.0-0.bpo.11-rt-armmp", ver:"4.19.146-1~deb9u1", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-0.bpo.11-686", ver:"4.19.146-1~deb9u1", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-0.bpo.11-686-dbg", ver:"4.19.146-1~deb9u1", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-0.bpo.11-686-pae", ver:"4.19.146-1~deb9u1", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-0.bpo.11-686-pae-dbg", ver:"4.19.146-1~deb9u1", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-0.bpo.11-amd64", ver:"4.19.146-1~deb9u1", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-0.bpo.11-amd64-dbg", ver:"4.19.146-1~deb9u1", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-0.bpo.11-arm64", ver:"4.19.146-1~deb9u1", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-0.bpo.11-arm64-dbg", ver:"4.19.146-1~deb9u1", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-0.bpo.11-armmp", ver:"4.19.146-1~deb9u1", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-0.bpo.11-armmp-dbg", ver:"4.19.146-1~deb9u1", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-0.bpo.11-armmp-lpae", ver:"4.19.146-1~deb9u1", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-0.bpo.11-armmp-lpae-dbg", ver:"4.19.146-1~deb9u1", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-0.bpo.11-cloud-amd64", ver:"4.19.146-1~deb9u1", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-0.bpo.11-cloud-amd64-dbg", ver:"4.19.146-1~deb9u1", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-0.bpo.11-marvell", ver:"4.19.146-1~deb9u1", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-0.bpo.11-marvell-dbg", ver:"4.19.146-1~deb9u1", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-0.bpo.11-rpi", ver:"4.19.146-1~deb9u1", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-0.bpo.11-rpi-dbg", ver:"4.19.146-1~deb9u1", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-0.bpo.11-rt-686-pae", ver:"4.19.146-1~deb9u1", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-0.bpo.11-rt-686-pae-dbg", ver:"4.19.146-1~deb9u1", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-0.bpo.11-rt-amd64", ver:"4.19.146-1~deb9u1", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-0.bpo.11-rt-amd64-dbg", ver:"4.19.146-1~deb9u1", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-0.bpo.11-rt-arm64", ver:"4.19.146-1~deb9u1", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-0.bpo.11-rt-arm64-dbg", ver:"4.19.146-1~deb9u1", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-0.bpo.11-rt-armmp", ver:"4.19.146-1~deb9u1", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-0.bpo.11-rt-armmp-dbg", ver:"4.19.146-1~deb9u1", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-kbuild-4.19", ver:"4.19.146-1~deb9u1", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-perf-4.19", ver:"4.19.146-1~deb9u1", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-source-4.19", ver:"4.19.146-1~deb9u1", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-support-4.19.0-0.bpo.11", ver:"4.19.146-1~deb9u1", rls:"DEB9"))) {
    report += res;
  }

  if(report != "") {
    security_message(data:report);
  } else if(__pkg_match) {
    exit(99);
  }
  exit(0);
}

exit(0);

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02 Feb 2024 00:00Current
6.9Medium risk
Vulners AI Score6.9
CVSS 29.3
CVSS 3.16.7 - 7.8
CVSS 35.3
EPSS0.05271
debiansecurity advisorydla-2385-1linux kernelprivilege escalationdenial of serviceinformation leakcve-2019-3874cve-2019-19448cve-2019-19813cve-2019-19816cve-2020-10781cve-2020-12888cve-2020-14314cve-2020-14331
27